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Química Nova
On-line version ISSN 1678-7064


Table of contents
Quím. Nova vol.23 n.3 São Paulo May/June 2000

Vieira, Paulo Cezar

 ·  Iron extraction from Brazilian smectite by dithionite-citrate-bicarbonate method
Leite, Sidnei Quezada M.; Colodete, Carlos Henrique A.; Dieguez, Lídia Chaloub; San Gil, Rosane A. S.

 ·  Toluene disproportionation on mordenite type zeolites - activity and selectivity in the xylenes obtention
Escobar, Flávia A. Malacrida; Batista, Marcelo da Silva; Urquieta-González, Ernesto A.

 ·  Separation and identification of polar constituents from the branches of Porcelia macrocarpa
Chaves, Mariana H.; Freitas, Alexander de; Roque, Nídia F.; Cavaleiro, Alberto José

 ·  Direct determination of selenium in coconut water and coconut milk using graphite furnace atomic absorption spectrometry
Aleixo, Poliana C.; Nóbrega, Joaquim A.; Santos Júnior, Dário; Muller, Regina C. S.

 ·  Effect of adsorbed polyaniline on the thermal stability of iron and arsenic oxides
Farias, Robson Fernandes de

 ·  The determination of the stoichiometry of the mixed complex of vanadium with hydrogen peroxide and with 4-(2-Pyridilazo) Resorcinol
He, Xiwen; Tubino, Matthieu; Rossi, Adriana Vitorino

 ·  Effect on the reactive diluent PGE on the cure kinetics of an epoxy resin used in structural composites
Costa, Michelle Leali; Rezende, Mirabel Cerqueira; Pardini, Luiz Claudio

 ·  Obtention of heavy metal ions adsorbent material by 2-mercaptobenzimidazole electropolimerization at reticulated vitreous carbon surface
Sousa, Maria de Fátima Brito; Dallan, Émerson José; Bertazzoli, Rodnei

 ·  Catalytic and electrocatalytic oxidation of organic substrates. Cerium as oxidant
Carrijo, Rosa Maria C.; Romero, José Ricardo

 ·  Carbonium ions
Mota, Claudio J. A.

 ·  The wide synthetic versatility of five membered rings containing phosphorus
Caliman, Vinicius

 ·  Safrole and eugenol: study of the chemical reactivity and use in the synthesis of biologically active natural products and its derivatives
Costa, Paulo R. R.

 ·  State of the art of high temperature high resolution gas chromatography
Pereira, Alberto dos Santos; Aquino Neto, Francisco Radler de

 ·  Molecular and biomolecular conductance
Gama, A. Arnóbio S. da

 ·  The use of mass spectrometry in electrochemical measurements - the DEMS technique
Souza, José Pio I. de; Queiroz, Salete Linhares; Nart, Francisco Carlos

 ·  Studies of the underpotential deposition of metals
Santos, Mauro C.; Machado, Sergio A. S.; Avaca, Luis A.; Mascaro, Lucia H.

 ·  Exploring the motivation to the chemistry study
Cardoso, Sheila Pressentin; Colinvaux, Dominique

 ·  Buffer capacity evaluating - a collaborative experiment
Silva, César Ricardo; Simoni, José de Alencar

 Nota técnica
 ·  Humic substances: a sequential device for fractionation by ultrafiltration with molecular size basis
Rocha, Julio Cesar; Zara, Luiz Fabricio; Rosa, André Henrique; Sargentini Junior, Ézio; Burba, Peter

 ·  The Fourier transform (FFT) in basic
Constantino, Mauricio Gomes; Silva, Gil Valdo José da

 Assuntos gerais
 ·  Wilhelm Michler, a scientifical adventure in the tropics
Santos, Nadja Paraense dos; Pinto, Angelo C.; Alencastro, Ricardo Bicca de

 ·  The 200 years of the electric pile
Chagas, Aécio Pereira

 ·  Carta ao o editor
Nascimento, Alexandre Rodrigues do